$ sudo apt-get -V install msmtp
Reading package lists... Done
Building dependency tree... Done
The following packages will be REMOVED
   at (3.1.10)
   courier-imap (4.1.1.20060828-2)
   mutt (1.5.13-1)
The following packages will be upgraded:
   msmtp (1.4.7-3 => 1.4.7-4)
1 upgraded, 0 newly installed, 3 to remove and 0 not upgraded.
Need to get 96.8kB of archives.
After unpacking 6323kB disk space will be freed.
Do you want to continue [Y/n]?